planispere's

[MARC B]

Hi I am very new to Astronomy and I need an answer to a question. I have a phillips planispere which I got second hand and I wanted to know if you can use them forever. I noticed the planetary table on the back starts from 2005 and stops at 2014.

[bingevader]

The table for the planets might be slightly out of whack after next year, but the stars will be in the same place, for a bit anyway. 

[ronin]

The main front bit yes, the rear data on planets no.

[MARC B]

Cool thanks for your help. I got a phillips astro box for 0.01p from amazon so I cant complain really. The rest of the books etc are definitely worth the 1p even if I do have to get a new planisphere fairly soon, thanks

[bingevader]

Sorry, I was joking! The stars aren't going anywhere soon, your planisphere's usefulness will out live you, it's just the planety bit that will be out. You don't need a new one.